Light Meters - Page 3 - Orchid Board

VickiC · #21 03-21-2009, 04:19 PM

Yes, I would also buy one from you, Ray. I'm sure I'll need a 3rd one soon.

By the way, if you do decide to stock them, do you know yet if you will stock both digital and analog....or just one of the 2?

Vicki

Quote:

Originally Posted by Ray

I am a Hydrofarm distributor. Think it's worthwhile for me to stock them?

Ray · #22 03-21-2009, 06:55 PM

Probably only 1 of the 2.

The digital one has a remote sensor and three scales (0-200, 200-2000, 2000-5000fc), while the analog one has a fixed sensor and two (0-500, 0-5000).

There is about a $20 difference between the two, and I really don't think the slightly greater precision or the remote sensor are that critical to a typical grower, but I could be convinced.

VickiC · #23 03-21-2009, 07:19 PM

Ok.....thanks for the info, Ray. When I get ready for meter 3, I'll check First Rays to see what you decided.

Quote:

Originally Posted by Ray

Probably only 1 of the 2.

The digital one has a remote sensor and three scales (0-200, 200-2000, 2000-5000fc), while the analog one has a fixed sensor and two (0-500, 0-5000).

There is about a $20 difference between the two, and I really don't think the slightly greater precision or the remote sensor are that critical to a typical grower, but I could be convinced.

Caroline55 · #24 03-22-2009, 11:25 AM

Thanks for not replying my question. Oh yeah, I forgot that it is a forum for beginners. So, of course, beginners don't know anything.

ChasWG · #25 03-22-2009, 02:10 PM

Ouch Caroline! Not really fair. I saw your question, and I too am a beginner here. But I noticed that your question is very broad. Each different type of orchid takes a different amount of light. You didn't say what you were trying to grow, so the the folks who know the anwsers can't say. Also, there i a search function here that is actually very good. I would suggest you try that for your orchids. The anwser is out there! Good luck!

ChasWG · #26 03-22-2009, 02:13 PM

OK, my question. Is there a formula out there for converting F stop readings to FC readings? I have a very nice light meter for camera work and it reads out in F stops, depending on what ASA you set in.
Anyhow, I was just wondering if I could use my (already bought, expensive and very accurate) light meter.

Thanks!

camille1585 · #27 03-22-2009, 02:54 PM

Quote:

Originally Posted by Caroline55

Thanks for not replying my question. Oh yeah, I forgot that it is a forum for beginners. So, of course, beginners don't know anything.

Sorry about that, I didn't see your question. Maybe you should post your question in a thread of its own? The problem was that your question was a bit unrelated to the topic (light meters). And you would need to be more precise. FCs vary between orchid types, so we would need to know what you are growing.

ChasWG · #28 03-22-2009, 03:55 PM

Alrighty then, I found it! Again, thank God for the internet! ha lol...

I need to get this book. All the info I and other people (Caroline55) wanted to know.

Ortho's all about orchids - Google Book Search

MuscleGirl'sHobby · #29 03-22-2009, 04:14 PM

Quote:

Originally Posted by Caroline55

Thanks for not replying my question. Oh yeah, I forgot that it is a forum for beginners. So, of course, beginners don't know anything.

That was uncalled for

This forum is a great place for information. However, you asked a VERY broad question about the light requirements of orchids in a thread dedicated to selection/quality/function of light meters. Had your question been posted in it's own thread, you would have received plenty of responses. As was suggested, try the search function, then post a thread if you still don't find what you're looking for.

Now...

I'm curious about the real differences between the "professional" models and the cheaper ones. For example, the first meter recommended cost over $100, while the next was under $30. Are there significant differences in the more expensive models... what are the advantages to making an investment in the pricier meters if any?

beanluc · #30 04-05-2009, 09:44 PM

Quote:

Originally Posted by ChasWG

OK, my question. Is there a formula out there for converting F stop readings to FC readings? I have a very nice light meter for camera work and it reads out in F stops, depending on what ASA you set in.
Anyhow, I was just wondering if I could use my (already bought, expensive and very accurate) light meter.

Thanks!

Hi, Chas, The Wikipedia article on footcandles has a chart which relates ISO, fstop, and shutter speed to footcandles. I did this with my photographic light meter for a minute.

Then I bought the Hydrofarm one.